# SDR Y2PA20120418015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2012
- Submitted: April 23, 2012
- Operation: Air carrier
- Aircraft: [N831US](https://openairdocs.org/aircraft/N831US), registered now
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 49791
- Aircraft time: 51,164 hours, 29,172 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 60030451
- Part serial: 27296
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Y2PA20120418015

## Discrepancy

DURING SERVICE CHECK, FOUND FORWARD LT AND RT OVER WING EXIT LIGHTS INOPERATIVE.  MX R & R THE EMERGENCY LIGHT POWER SUPPLY B5-103.  SYSTEM OPERATIONALLY CHECKED GOOD IAW MM 33-50-0.

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